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Finding the Fourth Proportional to 1,924.60, 2,881.94 and 1,764.22

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Solution

The fourth proportional to 1,924.60, 2,881.94 and 1,764.22 is: 2,641.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,924.60 : 2,881.94 = 1,764.22 : x
  2. Step 2: Convert to fraction form
    1,924.60/2,881.94 = 1,764.22/x
  3. Step 3: Cross multiply
    1,924.60x = 2,881.94 × 1,764.22
  4. Step 4: Simplify right side
    1,924.60x = 5,084,376.19
  5. Step 5: Solve for x
    x = 5,084,376.19/1,924.60
  6. Step 6: Final answer
    x = 2,641.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.